OBSERVATION OF COSMIC RAY DECREASES AT THE POLE
Journal Article
·
· Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B
Careful measurements show an increase in cosmicray intensity with latitude; however, the present investigation was concerned with cosmic-ray decreases in the region of the pole. Measurements were made at four stations during May and June 1951 using a vertical Oeiger counter telescope. There is a clear recurrence of cosmic storms with a period of about 27 days, the period of rotation of the sun. The cause of the 27-day variation is not settled. No attempt is rnade to explain Forbush decreases. It appears, however, that the cause must be a decrease in the number of primary cosmic rays or a deceleration of the particles before entering the earth's atmosphere or both screening and deceleration. (A.C.)
- Research Organization:
- Univ. of Maryland, College Park
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-13-007991
- OSTI ID:
- 4250788
- Journal Information:
- Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10) 8, Suppl. No. 2; ISSN NUCIA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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