Radiation safety issues in single-stage-to-orbit spacecraft powered by antimatter rocket engines

1992 ◽  
Vol 8 (1) ◽  
pp. 127-135 ◽  
Author(s):  
Christopher Tarpley ◽  
Mark J. Lewis ◽  
Ajay P. Kothari
Keyword(s):  
Radiation Safety ◽  
Single Stage ◽  
Rocket Engines ◽  
Safety Issues

scholarly journals Manual on the proper use of sodium astatide ([211At]NaAt) injections in clinical trials for targeted alpha therapy (1st edition)

2021 ◽  
Author(s):  
Tadashi Watabe ◽  
Makoto Hosono ◽  
Seigo Kinuya ◽  
Takahiro Yamada ◽  
Sachiko Yanagida ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Japanese Society ◽  
Radiation Safety ◽  
Safety Management ◽  
Evaluation Methodology ◽  
Targeted Alpha Therapy ◽  
Safety Issues ◽  
Safety Standards ◽  
And Training ◽  
Alpha Therapy

AbstractWe present the guideline for use of [211At] sodium astatide (NaAt) for targeted alpha therapy in clinical trials on the basis of radiation safety issues in Japan. This guideline was prepared by a study supported by the Ministry of Health, Labour, and Welfare, and approved by the Japanese Society of Nuclear Medicine on 8th Feb, 2021. The study showed that patients receiving [211At]NaAt do not need to be admitted to a radiotherapy room and outpatient treatment is possible. The radiation exposure from the patient is within the safety standards of the ICRP and IAEA recommendations for the general public and caregivers. Precautions for patients and their families, safety management associated with the use of [211At]NaAt, education and training, and disposal of medical radioactive contaminants are also included in this guideline. Treatment using [211At]NaAt in Japan should be carried out according to this guideline. Although this guideline is applied in Japan, the issues for radiation protection and evaluation methodology shown here are considered internationally useful as well.

Radiation safety issues for top-up operation at SPring-8

2006 ◽  
Vol 41 ◽  
pp. S236-S241 ◽  
Author(s):  
Yoshihiro Asano ◽  
Tetsuya Takagi
Keyword(s):  
Radiation Safety ◽  
Safety Issues

Radiation Safety Issues for Air Sampling

2010 ◽  
pp. 11-19
Author(s):  
Mark Maiello ◽  
Mark Hoover
Keyword(s):  
Radiation Safety ◽  
Air Sampling ◽  
Safety Issues

Deaths within 12 months after 125I implantation for brachytherapy of prostate cancer: An investigation of radiation safety issues in Japan (2003–2010)

Brachytherapy ◽  
2012 ◽  
Vol 11 (3) ◽  
pp. 192-196 ◽  
Author(s):  
Takefumi Satoh ◽  
Hidetoshi Yamanaka ◽  
Takashi Yamashita ◽  
Manabu Aoki ◽  
Shin Egawa ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Radiation Safety ◽  
Safety Issues

PATIENT PARAMETERS AND OTHER RADIATION SAFETY ISSUES IN 131I THERAPY FOR THYROID CANCER TREATMENT

2007 ◽  
Vol 93 (6) ◽  
pp. 656-666 ◽  
Author(s):  
Abdalla N. Al-Haj ◽  
Charlie S. Lagarde ◽  
Aida M. Lobriguito
Keyword(s):  
Thyroid Cancer ◽  
Cancer Treatment ◽  
Radiation Safety ◽  
131I Therapy ◽  
Safety Issues

Sentinel lymph node technique for breast cancer: radiation safety issues

2004 ◽  
Vol 31 (3) ◽  
pp. 298-303 ◽  
Author(s):  
Martin Law ◽  
Louis W.C Chow ◽  
Ava Kwong ◽  
C.K Lam
Keyword(s):  
Breast Cancer ◽  
Lymph Node ◽  
Sentinel Lymph Node ◽  
Radiation Safety ◽  
Safety Issues

On the feasibility of developing a single-stage acceleration/deceleration unit based on the oxygen-hydrocarbon engine 11D58M for a super-heavy launch vehicle

2021 ◽  
pp. 62-75
Author(s):  
Boris A. SOKOLOV ◽  
Nikolay N. TUPITSYN ◽  
Evgeniy N. TUMANIN ◽  
Igor A. KRYUKOV ◽  
Andrey V. KISELEV ◽  
...  
Keyword(s):  
Rocket Engine ◽  
Launch Vehicle ◽  
Single Stage ◽  
Rocket Engines ◽  
Liquid Propellant ◽  
Gravity Assist ◽  
Upper Stage ◽  
Gravity Assist Maneuver ◽  
Lunar Gravity Assist ◽  
Propellant Rocket

The paper presents results of unsolicited exploratory design studies done by the authors into the feasibility of developing for a super-heavy launch vehicle a single-stage oxygen-hydrocarbon acceleration/deceleration unit (ADU) with two liquid-propellant rocket engines 11D58M developed by RSC Energia, intended for insertion of manned spacecraft into lunar orbit, as well as for insertion of super-heavy spacecraft into geostationary orbit (including the orbital module high-apogee transfer profile using lunar gravity assist maneuver). It demonstrates that the single-stage ADU will have a number of important advantages over both a single-stage oxygen-hydrogen ADU and a functionally similar two-stage acceleration/deceleration system of an orbital module in the form of a tandem stack of an oxygen-hydrogen acceleration stage and correction and braking stage. To assure the start-ups of the main liquid propulsion system of the ADU, it proposes a new method for inertial propellant component phase separation in the tanks in zero-gravity environment using a pre-startup pre-programmed ullage separation turn maneuver of the orbital unit about its transverse axis of inertia. Key words: Integrated launch vehicle, launch vehicle, orbital module, upper stage, orbital transfer vehicle, acceleration/deceleration unit, ullage maneuver, liquid-propellant rocket engine.

scholarly journals Radiation safety issues with high activities of liquid I-125: Techniques and experience

2003 ◽  
Vol 4 (2) ◽  
pp. 143-148
Author(s):  
A. F. de Guzman ◽  
W. T. Kearns ◽  
E. Shaw ◽  
S. Tatter ◽  
V. Stieber ◽  
...  
Keyword(s):  
Radiation Safety ◽  
Safety Issues

scholarly journals Analysis of patient medical exposure in X-ray diagnostics in Russia for half a century (1970–2019)

2021 ◽  
Vol 14 (4) ◽  
pp. 60-75
Author(s):  
S. A. Kalnitsky ◽  
N. V. Tselikov
Keyword(s):  
Effective Dose ◽  
Radiation Safety ◽  
X Ray ◽  
Safety Issues ◽  
Radiation Sources ◽  
Medical Diagnostic ◽  
Effective Doses ◽  
The Russian Federation ◽  
Medical Exposure ◽  
Observation Period

During last 50 years, firstly in the RSFSR in the USSR (1970-80), then in the Russian Federation - RF (1990-2019), the authors studied the radiation safety issues of patients from medical exposure. The reader is offered a complex radiation-hygienic analysis of the 50-year medical exposure of patients and of the population in Russia to inform and analyze the available data on the most common type of use of ionizing radiation sources in the national economy. For a half century, several generations of people have changed and medical diagnostic X-ray equipment and technologies have also radically changed. The information from this article was obtained on the basis of radiation-hygienic statistics, as well as considered our research. The data is presented at the federal level in the form of the volume of research carried out- determined by the number of X-ray procedures, as well as the level of medical exposure in the form of effective dose of patients in Russia - a huge region with a population of about 150 million people, where about 200 million X-Ray procedures were performed annually, i.e. about 10 billion X-Ray procedures for the entire observation period. During the study, a collective effective dose was - 6.5 million person-Sv at the rate of 100 thousand person-Sv and more per year. The paper presents the dynamics and the structure of the studied indicators depending on the type of medical exposure, as well as its localization. The contribution of the X-ray diagnostics to the total volume of radiation diagnostics, which is developing dynamically, is presented. It was found that throughout the study, there were two oppositely directed processes: an increase in the number of X-Ray procedures and a decrease in the effective doses of patients. At present, the minimum dose has been reached, after that it has been increasing began, associated with the use of new computer technologies. It was determined that, depending on the localization, the main radiation load during X-ray procedures falls on the skeleton and digestive organs. It is shown that during the study period (in 1986) there was an accident at the Chernobyl, which significantly affected on medical activities and, in particular, X-ray diagnostic indicators. The paper shows the consequences of these situations. In general, the data presented is huge in volume and significant in information content. The information obtained on the basis of such a unique data is representative and allows, firstly, to analytically study the issues of radiation protection of patients and, secondly, to plan the strategy and tactics of its development.

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